Graduate at Engenharia de Operações Eletrônica from Departamento de Engenharia Elétrica (1980), Master's at Education from Faculdade de Psicologia (1992) both ato Pontifícia Universidade Católica do Rio Grande do Sul. Ph.d. at Computer Science from Universidade Federal do Rio Grande do Sul (2001). Associate Professor at Departamento de Informática e Estatística (INE) da Universidade Federal de Santa Catarina (UFSC). Has experience in Computer Science, focusing on Formal Languages and Automata, acting on the following subjects: Artificial Intelligence, Multiagent Systems Computer and Education, Learning Objects.